The following are projects that implement the OpenPGP protocol which have agreed (to some degree) to be a part of this working group and work towards improving the usability across the PGP eco-system.

Email Clients

• Thunderbird
• Mailpile
• Whiteout (no longer available as of January 1st 2016)
• Pixelated
• …to be added…

Email Plugins

• Mailvelope
• Enigmail
• GPGTools
• Google’s End-to-End
• Yahoo’s End-to-End
• …to be added…

Keychain Managers

• GnuPG
• OpenKeychain
• GPGTools
• …to be added…

Keyservers

• Nyms
• LEAP
• …to be added…

Miscelaneous

• Schleuder encrypted mailinglist

Keysigning tools

• Monkeysign
• caff (part of the signing-party package)
• Gnome Keysign

This is by no means an exclusive list. If you work on or know of a relevant project and would like it included, please file and issue on our github repo.